Table for gaining-m achines



(NoModel.)

D. ADAMS. y f

TABLE POR GAINING MACHINES.

No'. 322,237; Y 'Patented July 14, 1885.

.UNITED STATES PATENT Ormea. 1

DANIEL ADAMS, OF PHILADELPHIA, PENNSYLVANIA.

TABLE FOR GAINING-MACHINES.'

SPECIFICATION forming part of Letters Patent; No. 322,237, dated July14, 1885.

.application mea February 12, 1855. (No model.)

To @ZZ whom it may concern:

Be it known that I, DANIEL ADAMs, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a ynew and useful Improvement in Machines for Cutting orGrooving String-Boards, which improvement is fully set forth in thefollowing specification and accompanying drawings, in which- Figure lrepresents a top or plan view of a machine for cutting or groovingstring-boards embodying my invention. Fig. 2 represents a longitudinalvertical section thereof in line a x, Fig. l. Fig. 3 represents a top orplan view ofthe rotary table of the machine. Fig. 4 represents avertical section of a portion thereof in line y y, Fig. 1, enlarged.

Similar letters of reference indicate corresponding parts in the severalfigures.

My invention consists of a machine for cutting or grooving string-boardsembodying an angularly-adjustable guide, a rotary table, a novelclamping device, and a stop for adjusting the length of the cut orgroove in the string-board.

Referring to the drawings, A represents the bed of the machine, and Brepresents a rotary table mounted.- thereon by means of-a thimble orcollar, C, which is freely fitted within a thimble or collar, D, on saidbed, the cutter or grooving tool E passing through said thimble O.

Within the side pieces, F, of the rotary table B is tted a slidingtable, G, a portion of which is cut away or spaced in a longitudinaldirection, as at H, and the tool E projects into said space. The innerfaces of the side pieces, F, are provided with rollers J, and the sidesof the table G are provided with rollers K, whereby the said table maybe operated with ease and precision in its advancing and returningmotions.

Hinged to a cross-bar at one end of vthe table G is a clamp orclamping-arm, L, and connected with said table at the opposite endsthereof are spring-catches M, which are adapted to engage with the clampor arm L, as most clearly shown in Fig. 4.

Hinged to the handle end of the clamp L is a bar, N, for releasing thecatches M from their holding action on said clamp L.

0n the end of the sliding table G, adjacent to the handle of the clampL, is an adjustable stop, l?, the nose Q of which is adapted to abutagainstthe table B, and thus limit the play of said table G and adjustthe length of the out or groove formed in the string-piece by the toolE.

To the table G is secured. an annulus, R, in which are segmental slots Sto receive the screw-bolts T of the guide U, the latter being pivoted tothe table G.

The operation is as follows: The bar N is removed from the positionshown in dotted lines, Figs. 2 and 4, to that shown by the full lines(in section) in said Fig. 2, that is to say, it is advanced toward thecatches M, and forced against the same, whereby the catches are pushedout from the clamp L, and by holding the bar in contact with the clampthe latter may be raised, so that the stringpiece to be grooved may beplaced againstthe guide U, the latter being adjusted to the angle it isdesired to advance the string' piece to the tool E, and the nuts of thebolts T being properly tightened, it being noticed that the table G isprovided with graduations V, in order to adjust the angle of the guide Uwith niccty and correctness. The clamp is then lowered, whereby it isengaged and held by the catches M, the bar N being thrown up to theposition shown by the dotted lines,

Fig 2. The table G is now advanced and `the clamped board presented tothe tool E,

and the groove formed in said board. The table is now returned and thebar N lowered, whereby the clamp is released, and the board is thenmoved along the guide U the distance required for the next groove, afterwhich the clamp is again secured by the catches M, and

the table may be advanced for the motion of IOC ' groove to the other,the table B has a mark,

X, which readily guides the Workman in determining correct distances, asis evident.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is

l. A cutting or grooving machine provided with the rotary table B,mounted on the bed of the machine, and the sliding table G, fitted inguides on said rotary table, substantially table B, having collar C andguides F, sliding table G, provided with slotted annulus R andy 2oclamps D, and guide U, substantially as and for the purpose set forth.

4. In a cutting and grooving machine, arotary table mounted on the bedof the machine,

a sliding table fitted to said rotary. table, a 25 guide pivoted to saidsliding table, a clamp extending across said sliding table and securedby a clamp at one end thereof, and clamps connecting the rotary andsliding tables, all

of said part-s being arranged and combined 3o substantially as and forthe purpose set forth.

DANinL Anni/rs.

Witnesses:

JOHN A. VIEDnRsHEiM, A. P. GRANT.

